Finding the Fourth Proportional to 134,544.76, 185,671.98 and 74,115.65
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Solution
The fourth proportional to 134,544.76, 185,671.98 and 74,115.65 is: 102,279.72
Step by Step Solution
- Step 1: Write the proportion equation
134,544.76 : 185,671.98 = 74,115.65 : x - Step 2: Convert to fraction form
134,544.76/185,671.98 = 74,115.65/x - Step 3: Cross multiply
134,544.76x = 185,671.98 × 74,115.65 - Step 4: Simplify right side
134,544.76x = 13,761,199,948.67 - Step 5: Solve for x
x = 13,761,199,948.67/134,544.76 - Step 6: Final answer
x = 102,279.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.